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Home » Authors » John Siegenthaler, P.E.

Articles by John Siegenthaler, P.E.

John Siegenthaler Hydrolics Workshop

Parsing a number

Differences exist between rules of thumb and precise calculations.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
September 20, 2013

 

Differences exist between rules of thumb and precise calculations.


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John Siegenthaler Hydrolics Workshop

Nature vs. math

Formulas and assumptions don’t always predict what happens.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
August 22, 2013

 The following formula has been around the North American hydronics industry for a long time:  


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John Siegenthaler Hydrolics Workshop

Trade-offs in boilers

Two boiler characteristics that need to make a comeback.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
July 18, 2013

 North American hydronic professionals can now choose from dozens of modulating/condensing (mod/con) boilers. Many are designed for wall-mounting. Those who design these boilers strive for small enclosures and low weight.  


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The Glitch and the Fix

Controlled radiant cooling

The Glitch & The Fix, June 2013
John Siegenthaler, P.E.
John Siegenthaler, P.E.
June 28, 2013

An installer plans to use a geothermal heat pump to supply warm water to a multizone radiant ceiling panel system.  Having heard that radiant ceiling panels also can be used for cooling, he decides to pump chilled water through the same radiant ceiling distribution system.


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John Siegenthaler Hydrolics Workshop

The basics of radiant ceiling cooling

No drips allowed.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
June 25, 2013

 For decades, well-designed and -installed hydronic heating systems have earned a reputation for superior comfort. Still, potential customers who understand and desire the benefits of hydronic heating often ask, “But how does this system provide cooling?”  


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The Glitch and the Fix

Contractor pack for copper-tube boiler

May 2013 The Glitch and The Fix
John Siegenthaler, P.E.
John Siegenthaler, P.E.
May 31, 2013

A low-mass copper tube boiler is installed with six zone circuits controlled by zone valves. The installer got a great price on a “contractor pack” of 3/4-in. copper tees, so the supply and return headers are build with 3/4-in copper, as are all the zone circuits.


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John Siegenthaler Hydrolics Workshop

Biomass heating systems can use both big and little tanks

How they can work together in a wood-fired heating system.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
May 29, 2013

 

Interest in biomass heating systems continues to rise, especially in rural areas of the United States and Canada. Although plenty of devices are available that burn wood to heat water, the state-of-the-art device is a wood-gasification boiler.


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The Glitch and the Fix

Buried radiant PEX mistakes

April 2013 The Glitch & The Fix
John Siegenthaler, P.E.
John Siegenthaler, P.E.
April 30, 2013

A group of masons pour a 6-in.-thick concrete slab containing 5/8-in. PEX tubing at 12-in. spacing. A nearly complete layer of extruded polystyrene insulation is under the slab. But what are they doing wrong?


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John Siegenthaler Hydrolics Workshop

Solar Thermal Report- Spring 2013: If I Made the Tanks, Part 1

What would an ideal pressurized thermal storage tank for a solar combisystem look like?
John Siegenthaler, P.E.
John Siegenthaler, P.E.
April 26, 2013
Residential solar combisystems provide domestic water heating and some percentage of space heating. Although less known than domestic hot water-only systems, combisystems can be practical and efficient if properly sized and designed.
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John Siegenthaler Hydrolics Workshop

Smoke Gets in your Eyes

It’s time to do wood-fired heating right.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
April 19, 2013
Every August, I make a short trip to a local event call the Woodsmen’s Field Days. This gathering is all about cutting down trees and then slicing them up into either firewood or lumber.
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      • Dave Yates: Contractor’s Corner
      • John Siegenthaler: Hydronics Workshop
      • Kenny Chapman: The Blue Collar Coach
      • Matt Michel: Service Plumbing Pros
      • Scott Secor: Heating Perceptions
  • ENGINEERS
    • CONTINUING EDUCATION
    • DECARBONIZATION | ELECTRIFICATION
    • FIRE PROTECTION
    • GEOTHERMAL | SOLAR THERMAL
    • PIPING | PLUMBING | PVF
    • PME COLUMNS
      • Christoph Lohr: Strategic Plumbing Insights
      • David Dexter: Plumbing Talking Points
      • James Dipping: Engineer Viewpoints
      • John Seigenthaler: Renewable Heating Design
      • Lowell Manalo: Plumbing Essentials
      • Misty Guard: Guard on Compliance
  • RADIANT & HYDRONICS
    • RADIANT COMFORT REPORT
    • THE GLITCH & THE FIX
  • INSIGHTS
    • CODES
    • GREEN PLUMBING & MECHANICAL
    • PROJECT PROFILES
    • COLUMNS
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